1/2 cup half-and-half 1 tablespoon sugar 1/4 teaspoon vanilla
1 sandwich ziploc bag 1 gallon ziploc bag
3 cups crushed ice 1/3 cup rock salt


Place 1st THREE items in small size Ziploc bag and seal it and then put ice and rock salt in large size bag and add the filled small size bag. Then finally, seal the large size bag.
After this, squeeze the bag for approximately ¼ hour or till ice cream become thick.
Take out of small bag, then unseal.